Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 7696 1096 14% 0.00 1457 725 50% 6.8
10 Kinds of People 15857 3288 21% 0.01 2697 1931 72% 3.4
2048 7347 3400 46% 0.00 3310 2816 85% 2.5
3D Printed Statues 8371 3857 46% 0.00 3571 3199 90% 2.0
3D Printer 667 122 18% 0.00 254 95 37% 8.5
3-Sided Dice 2134 188 9% 0.00 349 129 37% 8.6
4 thought 7427 2484 33% 0.00 2495 2077 83% 2.9
A1 Paper 4767 1405 29% 0.00 1388 1106 80% 3.4
Aaah! 25506 11857 46% 0.00 10658 9925 93% 1.6
Abandoned Animal 1517 329 22% 0.03 398 289 73% 5.1
ABC 11299 5122 45% 0.00 4891 4451 91% 1.7
Ab Initio 693 115 17% 0.10 116 72 62% 8.1
Above Average 7043 2933 42% 0.00 2901 2600 90% 2.1
A+B Problem 7132 695 10% 0.03 1022 336 33% 8.4
A Brief Gerrymander 201 45 22% 0.15 49 30 61% 8.4
Abstract Art 261 78 30% 0.00 80 60 75% 6.5
Absurdistan Roads II 547 197 36% 0.00 195 133 68% 6.8
Absurdistan Roads III 1355 380 28% 0.02 370 284 77% 5.5
Access Points 344 135 39% 0.01 123 98 80% 4.2
A Classy Problem 8464 2143 25% 0.01 1885 1445 77% 4.7
ACM Contest Scoring 5958 3739 63% 0.00 3312 3122 94% 1.6
Add 'Em Up! 261 93 36% 0.01 91 73 80% 4.0
Adding Words 9117 2138 23% 0.00 2104 1609 76% 4.0
A Different List Game 6421 444 7% 0.00 805 161 20% 9.2
A Different Problem 27229 10182 37% 0.00 9395 8156 87% 2.1
Adjoin the Networks 1822 487 27% 0.00 434 342 79% 5.5
Administrative Difficulties 1030 236 23% 0.03 253 172 68% 6.2
Advanced Causal Measurements 57 18 32% 0.10 22 18 82% 6.2
Adventure Begins 232 73 31% 0.06 80 60 75% 4.3
Adventures in Moving -- Part IV 903 267 30% 0.00 233 200 86% 4.4
A Favourable Ending 1432 372 26% 0.00 347 262 76% 4.6
A Feast For Cats 1905 678 36% 0.00 451 381 84% 4.2
A Flea on a Chessboard 358 73 20% 0.01 88 64 73% 5.0
Air Conditioned Minions 4608 1263 27% 0.00 1331 999 75% 3.8
Airline Hub 1735 320 18% 0.01 348 195 56% 6.7
Airport Coffee 803 173 22% 0.09 165 119 72% 7.2
Airport Construction 3269 419 13% 0.02 339 181 53% 7.4
Airport Logistics 56 13 23% 0.00 19 13 68% 7.4
Airports 385 109 28% 0.11 114 81 71% 6.7
Akcija 6485 2871 44% 0.00 2618 2321 89% 2.0
Aladin 751 76 10% 0.10 121 29 24% 8.2
Alchemy 98 16 16% 0.02 29 16 55% 8.7
Alea iacta est 32 13 41% 0.34 17 13 76% 6.9
Alehouse 123 41 33% 0.04 40 28 70% 5.8
Alice in the Digital World 2986 795 27% 0.01 769 606 79% 4.0
Alien Codebreaking 215 11 5% 3.23 30 8 27% 8.9
Alien Numbers 2086 1080 52% 0.00 1049 953 91% 2.0
A List Game 7500 2222 30% 0.00 2096 1763 84% 2.9
All about that base 2661 1045 39% 0.00 1020 854 84% 2.9
All Different Directions 1123 482 43% 0.00 453 395 87% 2.6
Allergy Test 440 124 28% 0.00 140 71 51% 7.9
All Friends 829 158 19% 0.00 149 77 52% 8.9
All is Well 10 2 20% 0.03 2 2 100% 5.5
All Just A Dream 1705 387 23% 0.05 270 188 70% 6.7
All Pairs Shortest Path 8093 1440 18% 0.02 983 694 71% 5.9
Almost Perfect 6727 1558 23% 0.00 1664 1295 78% 3.6
Almost Union-Find 5928 1048 18% 0.02 948 545 57% 6.8
Alphabet 1348 666 49% 0.00 678 573 85% 3.0
Alphabet Animals 1470 468 32% 0.00 478 382 80% 3.1
Alphabet Spam 7108 4485 63% 0.00 3623 3487 96% 1.3
Alternative Bracket Notation 204 85 42% 0.00 91 75 82% 5.3
Altruistic Amphibians 373 95 25% 0.24 93 67 72% 5.0
Amalgamated Artichokes 3632 1633 45% 0.01 1475 1283 87% 2.7
Amanda Lounges 1379 386 28% 0.03 360 282 78% 5.6
A Mazing! 2426 525 22% 0.09 252 192 76% 5.1
Amazing Adventures 315 82 26% 0.02 91 64 70% 5.6
Amazing Race 280 75 27% 0.39 84 60 71% 6.7
Ambiguous Result 258 56 22% 0.02 85 53 62% 8.0
Amsterdam Distance 1273 558 44% 0.00 601 494 82% 2.9
A Multiplication Game 674 212 31% 0.00 242 176 73% 4.9
Anagram Counting 3200 1227 38% 0.00 1189 987 83% 3.2
Andrew the Ant 252 71 28% 0.06 81 61 75% 5.2
A New Adventure 659 101 15% 0.01 130 85 65% 6.3
A New Alphabet 9968 4478 45% 0.00 4179 3859 92% 1.8
An I for an Eye 553 130 24% 0.00 154 105 68% 5.3
Animal Classification 1549 353 23% 0.03 303 201 66% 6.8
An Industrial Spy 1439 756 53% 0.02 599 515 86% 3.2
Another Brick in the Wall 2916 1434 49% 0.00 1392 1272 91% 1.9
Another Candies 7054 1913 27% 0.00 2007 1653 82% 2.7
Another Dice Game 91 64 70% 0.00 59 53 90% 4.0
Another Query on Array Problem 1418 197 14% 0.05 305 135 44% 7.7
Antenna Placement 127 58 46% 0.00 42 34 81% 5.4
Anthony and Cora 817 211 26% 0.00 254 177 70% 5.4
Anthony and Diablo 2670 928 35% 0.00 927 798 86% 2.5
Antiarithmetic? 1226 234 19% 0.01 295 172 58% 7.0
Ants 3254 1434 44% 0.00 1154 1007 87% 2.7
Apaxiaaaaaaaaaaaans! 11693 7153 61% 0.00 6323 6060 96% 1.4
Apostrophe Catastrophe 93 24 26% 0.00 24 17 71% 6.2
Appalling Architecture 505 143 28% 0.00 128 108 84% 3.8
Apparatus 681 168 25% 0.01 135 101 75% 5.7
Apple Market 461 93 20% 0.07 113 58 51% 8.2
Apples, Cherries, and Mangos 406 123 30% 0.02 126 91 72% 6.3
A Prize No One Can Win 1705 691 41% 0.00 642 566 88% 2.4
Aquarium Tank 470 130 28% 0.00 125 98 78% 5.1
Aqueduct Construction 196 71 36% 0.01 55 47 85% 6.7
A Question of Ingestion 1231 302 25% 0.00 288 219 76% 5.8
Arable Area 293 65 22% 0.04 66 42 64% 8.1
Arachnophobia 314 92 29% 0.14 83 68 82% 5.2
A Random Problem 311 78 25% 0.00 75 51 68% 6.5
A Rational Sequence 1630 547 34% 0.00 569 420 74% 4.4